what is the main prize in this game , next after jackpot? that one when all numbers are same or what?
The base prize is 500 satoshi, if that's what you mean. If the scratch area of the card matches both of the lucky numbers, you win a bigger prize, which is randomly drawn from the remaining pool of 1000, 2000, 10000, 50000 and 200000 satoshi prizes. Click prizes up in the navbar to see how many of each are left.
Additionally, yes you can enter the lottery drawing for a weekly shot at about 2 million satoshi.